Cross-site Scripting (XSS) Affecting jupyter-base-notebook package, versions <7.6.3-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.23% (13th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-JUPYTERBASENOTEBOOK-20563579
  • published8 Oct 2026
  • disclosed5 Jan 2026

Introduced: 5 Jan 2026

CVE-2025-66648  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Chainguard jupyter-base-notebook to version 7.6.3-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jupyter-base-notebook package and not the jupyter-base-notebook package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

vega-functions provides function implementations for the Vega expression language. Prior to version 6.1.1, for sites that allow users to supply untrusted user input, malicious use of an internal function (not part of the public API) could be used to run unintentional javascript (XSS). This issue is fixed in vega-functions 6.1.1. There is no workaround besides upgrading. Using vega.expressionInterpreter as described in CSP safe mode does not prevent this issue.

CVSS Base Scores

version 3.1